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Google Professional Data Engineer Exam - Topic 6 Question 20 Discussion

You have a data pipeline with a Cloud Dataflow job that aggregates and writes time series metrics to Cloud Bigtable. This data feeds a dashboard used by thousands of users across the organization. You need to support additional concurrent users and reduce the amount of time required to write the data. Which two actions should you take? (Choose two.)
D) Modify your Cloud Dataflow pipeline to use the Flatten transform before writing to Cloud Bigtable and E) Modify your Cloud Dataflow pipeline to use the CoGroupByKey transform before writing to Cloud Bigtable
A) Configure your Cloud Dataflow pipeline to use local execution
B) Increase the maximum number of Cloud Dataflow workers by setting maxNumWorkers in PipelineOptions
C) Increase the number of nodes in the Cloud Bigtable cluster

Google Professional Data Engineer Exam - Topic 6 Question 20 Discussion

Actual exam question for Google's Professional Data Engineer exam
Question #: 20
Topic #: 6
[All Professional Data Engineer Questions]

You have a data pipeline with a Cloud Dataflow job that aggregates and writes time series metrics to Cloud Bigtable. This data feeds a dashboard used by thousands of users across the organization. You need to support additional concurrent users and reduce the amount of time required to write the data. Which two actions should you take? (Choose two.)

Show Suggested Answer Hide Answer
Suggested Answer: D, E

by Arlette at May 09, 2022, 06:05 PM

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Minna
7 months ago
E? Really? That doesn't sound like it would help much.
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Amie
7 months ago
B is a must! More workers = faster writes.
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Loren
8 months ago
C seems right, but I'm not sure about B. Can it really handle that many users?
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Trevor
8 months ago
I think A is a bad idea. Local execution won't scale.
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Marion
8 months ago
Definitely B and C! More workers and nodes will help.
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Geoffrey
8 months ago
Local execution seems counterintuitive for scaling, so I’m leaning towards options B and C, but I’m not completely confident.
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Long
8 months ago
I practiced a similar question where scaling the Cloud Bigtable cluster was important. I think option C could be relevant here too.
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Romana
8 months ago
I'm not entirely sure, but I feel like modifying the pipeline to use Flatten could help with writing efficiency. Maybe option D?
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Barney
8 months ago
I remember that increasing the number of Cloud Dataflow workers can help with handling more concurrent users, so I think option B might be a good choice.
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Vicky
8 months ago
I think the answer is D. Web services attacks often involve exploiting vulnerabilities in the XML or SOAP protocols, so filtering improper XML syntax could help mitigate those types of attacks.
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Theola
8 months ago
Hmm, I think I've seen this concept before, but I'm not entirely sure about the details. I'll need to review my notes to refresh my memory.
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Nelida
8 months ago
Hmm, this seems like a tricky one. I'll need to carefully read through the options and think about the implications of each approach.
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Janessa
8 months ago
I think installing the Root certificate to the AEM truststore is crucial, but I'm not entirely sure if that's the right focus here.
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Blair
8 months ago
This seems like a straightforward question, I'm pretty confident I know the answer.
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Avery
8 months ago
I'm leaning towards the clear call to action, but the "subtlety of the brand" option is also intriguing. I'll have to weigh the pros and cons of each before deciding.
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